lkml.org 
[lkml]   [2019]   [Dec]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH] leds: gpio: Fix uninitialized gpio label for fwnode based probe
On Thu, Dec 5, 2019 at 10:25 PM Jacek Anaszewski
<jacek.anaszewski@gmail.com> wrote:

> When switching to using generic LED name composition mechanism via
> devm_led_classdev_register_ext() API the part of code initializing
> struct gpio_led's template name property was removed alongside.
> It was however overlooked that the property was also passed to
> devm_fwnode_get_gpiod_from_child() in place of "label" parameter,
> which when set to NULL, results in gpio label being initialized to '?'.
>
> It could be observed in debugfs and failed to properly identify
> gpio association with LED consumer.
>
> Fix this shortcoming by updating the GPIO label after the LED is
> registered and its final name is known.
>
> Fixes: d7235f5feaa0 ("leds: gpio: Use generic support for composing LED names")
> Cc: Linus Walleij <linus.walleij@linaro.org>
> Cc: Pavel Machek <pavel@ucw.cz>
> Cc: Russell King <linux@armlinux.org.uk>
> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

Yours,
Linus Walleij

\
 
 \ /
  Last update: 2019-12-11 01:45    [W:0.041 / U:0.424 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site